Keith D Perkins

US Patent:

20110257725, Oct 20, 2011

Filed:

Apr 20, 2010

Appl. No.:

12/763969

Inventors:

Jeffery Argentine - Petaluma CA, US
Mark Stiger - Windsor CA, US
Keith Perkins - Santa Rosa CA, US

Assignee:

Medtronic Vascular, Inc. - Santa Rosa CA

International Classification:

A61F 2/82

US Classification:

623 115, 623 124

Abstract:

A prosthesis comprises a tubular member that defines an inner lumen and has an inner surface and an outer surface, an outer member secured to the tubular member and covering at least a portion of the tubular member outer surface and forming an outer chamber therewith, and at least one valve in the tubular member to regulate or control fluid flow between the tubular member lumen and the chamber.

US Patent:

20120271399, Oct 25, 2012

Filed:

Apr 19, 2011

Appl. No.:

13/089803

Inventors:

Keith Perkins - Santa Rosa CA, US
Samuel Robaina - Santa Rosa CA, US
Jeffery Argentine - Petaluma CA, US
Walter Bruszewski - Windsor CA, US
Andrew Kiehl - Santa Rosa CA, US

Assignee:

Medtronic Vascular, Inc. - Santa Rosa CA

International Classification:

A61F 2/84
A61F 2/82

US Classification:

623 112, 623 115

Abstract:

A method includes covering an ostium of a branch vessel emanating from a main vessel with a proximal landing zone of a high metal to vessel ratio landing zone stent-graft, wherein a metal to vessel ratio of the proximal landing zone when deployed is sufficiently high to encourage tissue ingrowth around the proximal landing zone yet is sufficiently low to ensure perfusion of the branch vessel through the proximal landing zone. The method further includes covering an aneurysm of the main vessel with an exclusion zone of the high metal to vessel ratio landing zone stent-graft, the exclusion zone being formed of graft material. By forming the exclusion zone of graft material, excellent exclusion of the aneurysm is achieved.

US Patent:

20130261727, Oct 3, 2013

Filed:

Mar 27, 2012

Appl. No.:

13/430907

Inventors:

Keith PERKINS - Santa Rosa CA, US
Samuel Robaina - Santa Rosa CA, US
Jeffery Argentine - Petaluma CA, US
Walter Bruszewski - Windsor CA, US
Andrew Kiehl - Santa Rosa CA, US

Assignee:

Medtronic Vascular, Inc. - Santa Rosa CA

International Classification:

A61F 2/06
A61F 2/84

US Classification:

623 112, 623 11, 623 142, 623 113

Abstract:

A variable zone high metal to vessel ratio stent includes a proximal high metal to vessel ratio zone, a central low metal to vessel ratio zone, and a distal high metal to vessel ratio zone. The proximal high metal to vessel ratio zone is deployed with fixation and sealing to healthy tissue of a main vessel superior to branch vessels and an aneurysm. The central low metal to vessel ratio zone is deployed directly on ostai of the branch vessels. However, as the central low metal to vessel ratio zone is highly permeable, blood flows from the main vessel through the central low metal to vessel ratio zone and into branch vessels.

US Patent:

20130261728, Oct 3, 2013

Filed:

Mar 27, 2012

Appl. No.:

13/430942

Inventors:

Keith PERKINS - Santa Rosa CA, US
Samuel Robaina - Santa Rosa CA, US
Jeffery Argentine - Petaluma CA, US
Walter Bruszewski - Windsor CA, US
Andrew Kiehl - Santa Rosa CA, US

Assignee:

Medtronic Vascular, Inc. - Santa Rosa CA

International Classification:

A61F 2/84
A61F 2/82

US Classification:

623 112, 623 115, 623 142, 623 116

Abstract:

A method includes covering ostai of branch vessels emanating from a main vessel and an aneurysm with a high metal to vessel ratio stent. A metal to vessel ratio of the high metal to vessel ratio stent is sufficiently high to encourage tissue ingrowth around the high metal to vessel ratio stent yet is sufficiently low to ensure perfusion of the branch vessels through the high metal to vessel ratio stent. The ingrowth of tissue provides secure fixation and sealing of the high metal to vessel ratio stent to the main vessel and remodels and essentially eliminates the aneurysm. Further, as the entire high metal to vessel ratio stent is permeably, the high metal to vessel ratio stent is deployed without having to rotationally position the high metal to vessel ratio stent.

US Patent:

20220273418, Sep 1, 2022

Filed:

May 16, 2022

Appl. No.:

17/745339

Inventors:

- Santa Rosa CA, US
Timothy BERTINI - Santa Rosa CA, US
Keith PERKINS - Santa Rosa CA, US
Gian PELLEGRINI - Santa Rosa CA, US

International Classification:

A61F 2/07

Abstract:

A staged-deployment stent graft assembly. A main stent graft has a sacrificial port extending therefrom. The stent graft has a compressed state and an expanded state. The staged-deployment stent graft assembly also includes an internal stent cuff located within the stent graft. The internal stent cuff has a constricted state and a non-constricted state. The internal stent cuff may be biased to expand from the constricted state to the non-constricted state to close the sacrificial port when the main stent graft is in the expanded state. The assembly also includes a filament structure maintaining the internal stent cuff in the constricted state. The assembly further includes a release configured to manipulate the filament structure to transition the internal stent cuff from the constricted state to the non-constricted state to close the sacrificial port when the main stent graft is in the expanded state.

US Patent:

20220265417, Aug 25, 2022

Filed:

Feb 24, 2021

Appl. No.:

17/184329

Inventors:

- Santa Rosa CA, US
Tessa Bronez - Santa Rosa CA, US
Keith D. Perkins - Santa Rosa CA, US

International Classification:

A61F 2/07
A61F 2/966

Abstract:

A stent-graft prosthesis includes a graft material having a tubular construction, a frame coupled to the graft material, and a port or opening disposed between a proximal end and a distal end of the graft material. The port or opening is open during deployment of the stent-graft prosthesis to enable blood flow from a graft lumen within the graft material to exit the graft lumen, and the port or opening is blocked upon full deployment of the stent-graft prosthesis to prevent blood flow from within the graft lumen from exiting the graft lumen through the port or opening.

US Patent:

20210212831, Jul 15, 2021

Filed:

Mar 8, 2021

Appl. No.:

17/194973

Inventors:

- Santa Rosa CA, US
Todd Malsbary - Windsor CA, US
Keith Perkins - Santa Rosa CA, US
Travis Rowe - Santa Rosa CA, US

International Classification:

A61F 2/24

Abstract:

A venous valve prosthesis includes a frame and a prosthetic valve coupled to the frame. With the venous valve prosthesis implanted in a vein, the prosthetic valve includes a closed configuration wherein an outer surface of the prosthetic valve is in contact with a wall of the vein around a circumference of the prosthetic valve to prevent blood from flowing past the prosthetic valve between the wall of the vein and the outer surface of the prosthetic valve. The prosthetic valve is configured to move to an open configuration such that at least a portion of an outer wall of the prosthetic valve partially collapses away from the wall of the vein in response to antegrade blood flow through the vein to enable blood flow between the outer surface of the prosthetic valve and the wall of the vein.

US Patent:

20200338239, Oct 29, 2020

Filed:

Jul 14, 2020

Appl. No.:

16/928080

Inventors:

- Santa Rosa CA, US
Matt PETRUSKA - Windsor CA, US
Keith PERKINS - Santa Rosa CA, US
Samuel ROBAINA - Novato CA, US
Darren GALLIGAN - San Francisco CA, US
Rajesh RADHAKRISHNAN - Petaluma CA, US

International Classification:

A61L 27/56
A61F 2/06
A61L 31/10
A61F 2/07
A61L 31/16
A61L 27/52
A61L 27/54
A61L 27/58

Abstract:

The present technology relates generally to endovascular prostheses. More particularly, the disclosure relates to endovascular prostheses having an outer surface of a graft material thereof associated with a hydrogel composition, which may swell upon implantation within a blood vessel, thereby mediating various complications associated with endovascular procedures. The hydrogel compositions can also include various stabilizing polymers and active agents to further aid their use in the body.